Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall. There is also a wide range of skin color across people. Skin color is also a polygenic trait, as are hair and eye color.
All the above:
Eye color
height
skin color
Because their foots is shaped like a spade
<span>Switching genes on and off.</span>
Because one original strand of the double-stranded helix is found in each daughter cell, the replication process is called semiconservative replication.
<h3>What is semiconservative replication?</h3>
Before dividing, a cell copies its DNA through the replication process. For instance, before going through mitosis, each parent cell in a human must duplicate all six billion base pairs of its DNA.
Semiconservative replication is the technique used to reproduce DNA. Every strand serves as a model for a fresh double helix. DNA replication as it is now understood, where each double-stranded molecule is made up of one parental strand and one newly polymerized strand.
Every new DNA double helix would be a hybrid after one replication cycle made up of one strand of previously synthesized DNA coupled to another, according to the semiconservative model. The hybrids would then split during the second round of replication, and each strand would partner with a freshly created strand. The remaining half of the new DNA double helices would be entirely new, leaving only half of them to be hybrids. So there would be fewer hybrids and more entirely new double helices after each round of replication.
Learn more about semiconservative replication here:
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